Communications: directive radio wave systems and devices (e.g. – With particular circuit – For pulse modulation
Patent
1993-06-28
1994-06-14
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
With particular circuit
For pulse modulation
342204, 342132, 342134, 342135, 342201, G01S 1328, G01S 1330
Patent
active
053214099
ABSTRACT:
A radar system (20) has a chaotic code source (22) with a chaotic code output (23), which generates a chaotic code according to a chaotic difference equation. The radar system (20) further includes a transmitter (24) with a carrier signal source (28) of a carrier signal (29), and an encoder (30) having as a first input the carrier signal (29) of the carrier signal source (28) and as a second input the chaotic code output (23) of the chaotic code source (22), and as an output a transmitted radar signal (36) having the chaotic code output (23) encoded onto the carrier signal (29). A radar system receiver (26) includes a correlator (46) having as a first input the chaotic code output (23) of the chaotic code source (22) and as a second input a received radar signal (44), and as an output an indication of the correlation of the first and second inputs. The correlation is used to determine the distance, speed, or other characteristic of an object that reflected the radar signal.
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Brown Charles D.
Denson-Low Wanda K.
Heald Randall M.
Hughes Missile Systems Company
Sotomayor John B.
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